3/8in Moly Pushrod - 7.800in Long

The MANLEY 3/8in Moly Pushrod - 7.800in Long (MPN 25787-1) is a precision valve train component engineered for high-performance marine and automotive engines where reliability under load is non-negotiable. Built from chromoly steel with 0.080-inch thick walls and swedged ends, this pushrod delivers the strength and dimensional stability required in racing and heavy-duty applications where valve actuation precision directly impacts engine performance and longevity.

The 7.800-inch length and 3/8-inch diameter configuration supports demanding valve train geometries in small-block and mid-displacement engines. Chromoly construction resists deflection under high spring pressures and thermal cycling, critical factors in marine powerplants exposed to sustained operation and corrosive salt environments. The swedged end design provides secure seating in rocker arm and lifter bores, eliminating the play and wear patterns that compromise valve timing consistency. At just 0.16 lbs, the pushrod minimizes reciprocating mass—a key factor in reducing inertia losses and maintaining stable RPM response.

This component serves engine builders, marine technicians, and performance enthusiasts rebuilding small-block V8s, outboard conversion packages, and high-revving naturally aspirated engines. MANLEY pushrods are selected where OEM replacements fall short—applications including vintage restoration, competition rebuilds, and retrofit installations where durability trumps cost. A single pushrod replacement ensures consistency across the valve train; ordering by exact length and diameter prevents fitment errors and eliminates guesswork during engine assembly.

Verify compatibility with your specific block, head, and rocker arm configuration before purchase, as pushrod length is application-specific and non-adjustable. MANLEY's manufacturing tolerances ensure drop-in fitment with compatible valve train geometry.